1. Zero the balance: Ensure the balance is level and the pointer aligns with the zero mark when the pan is empty.
2. Place the object on the pan: Carefully place the object you want to weigh onto the pan.
3. Move the largest rider first: Start with the largest rider (typically the 100-gram rider) and move it along its scale until the pointer dips below the zero mark.
4. Adjust the middle rider: Move the middle rider (typically the 10-gram rider) to bring the pointer back up as close to the zero mark as possible.
5. Fine-tune with the smallest rider: Use the smallest rider (typically the 1-gram rider) to precisely align the pointer with the zero mark.
6. Read the mass: The total mass is the sum of the values indicated by the positions of all three riders.
Remember: The key is to move the riders in order of decreasing weight (largest to smallest) to get a close approximation quickly and then fine-tune with the smaller riders for accuracy.